System for removing lubricating oil from an internal combustion engine oil pan

Abstract

The disclosure relates to a system for removing lubricating oil from an internal combustion engine oil pan or sump through an associated dipstick. The lubricating oil removing system includes an electric pump which is connected by two wires and associated alligator clamps to a D.C. battery of the associated automobile and to an electric switch of an electric motor of a direct current pump. The pump includes two tubes, a first of which is introduced into the engine oil pan or sump through the dipstick tube and a second of which conducts oil to a reservoir, such as a collection tank, container or jug. The second tube includes a flexible hand siphon vacuum pump downstream of the electric pump whereby the flexible hand siphon vacuum pump can be repetitively pumped to suction lubricating oil from the engine sump/oil pan into the suction end of the electrically driven pump to prime the latter prior to closing the switch to drive the electric pump and draw the lubricating oil from the engine oil pan/sump through the first tube and deliver the same through the second tube to an appropriate oil collection pan or container.

I claim: 
     
       1. A portable system for removing lubricating oil from an internal combustion engine oil pan through an associated dip stick tube comprising an electric pump adapted to be driven by a source of 12 volt direct current, first and second conductor means connected to said electric pump and including means for connection to a source of 12 volt direct electrical current, first and second conduit means connected to said pump for respectively pumping oil from an associated oil pan through the dip stick tube and delivering oil to an associated reservoir, a flexible hand siphon vacuum pump in said second conduit means downstream of said pump whereby oil from the oil pan can be manually drawn into said electric pump to effect priming thereof prior to the energization of said electric pump from an associated direct electrical current, a 12 volt electric driven motor for driving said electric pump, switch means for said electric motor for energizing the same after the pump has been manually primed, said first and second conduit means being first and second tubes of synthetic polymeric/copolymeric material, said first tube being of a sufficient length to reach the bottom of an associated engine oil pan when inserted therein through an associated dip stick tube, said first tube being constructed of stiffer material than said second tube, and said first tube having a smaller internal diameter than an internal diameter of said second tube.